From Washington Examiner:

Grover Norquist, the head of the conservative Americans for Tax Reform, has accused a number of free-market groups, such as the R Street Institute, RepublicEn, Niskanen Center, and others, of being Democrats in disguise in floating the idea of a carbon tax to Republicans. Carbon tax critics are supporting a House resolution introduced this year by Steve Scalise, R-La., the party’s majority whip, that opposes a carbon tax or fee.